/// <summary>
/// Returns difference of two sets.
/// </summary>
/// <remarks>
/// Difference contains elements present in first set, but not in the second.<br/>
/// Difference is not symmetric. Difference(a,b) is not equal to Difference(b,a)
/// </remarks>
public static Set Difference(Set a, Set b)
{
a.CheckComparer(b);
Set result = new Set(a.Comparer);
SetOp.Difference(a, b, a.Comparer, new Inserter(result));
return(result);
}
public static Set Difference(Set a, Set b)
{
a.CheckComparer(b);
Set collection = new Set(a.Comparer);
SetOp.Difference(a, b, a.Comparer, new Inserter(collection));
return(collection);
}